/Engine/Plugins/Experimental/LearningAgents/Source/LearningAgents/Public/LearningAgentsHelpers.h
Projects a position and rotation onto the zero height ground plane resulting in translation only in XY and rotation only around the Z.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure=false, Category="LearningAgents", Meta=(AgentId="-1")) void ProjectPositionRotationOntoGroundPlane ( FVector & OutPosition, FRotator & OutRotation, const int32 AgentId, const FVector InPosition, const FRotator InRotation, const FVector LocalForwardVector ) const